State of the world's birds 2004 : indicators for our changing world /
Bennun, Leon A.
BirdLife International.
Cambridge : BirdLife International,
2004.
Title from cover.
"An assessment from the BirdLife Partnership"--Cover.
Electronic version available in portable document format (PDF).
Mode of access for electronic version: World Wide Web.
Birds
Birds.
Rare birds.
Biological diversity conservation.
Also available electronically via the World Wide Web.